Compact, Half-Bridge, Reinforced Isolated Gate Drive Reference Design


Design files


This reference design is a half-bridge isolated gated driver used in driving power stages of UPS, inverters, server and telecom applications. This reference design is based on the UCC21520 reinforced insulated gate driver and is capable of driving MOSFETs and SiC-FETs. The design contains a built-in isolated push-pull auxiliary power supply for powering the output of the isolated gate driver. By bringing  together the isolated gate driver and isolated power supply in a compact board with a form factor (!~30 mm × 35 mm), this reference design provides a fully tested robust half-bridge driver solution capable of withstanding >100 kV/μs common-mode transient immunity (CMTI).

  • Compact gate drive for driving power stages used in mid- and high-voltage power converters, single-phase and three-phase inverters
  • High-driving current (4-A source and 6-A sink) suits driving MOSFET/ SiC-FET with currents up to 100 A and operating frequencies up to 2 MHz, which reduces switching losses significantly
  • Supports 3250-VPK and 3000-VRMS basic isolation
  • Provides very High CMTI of > 100 kV/μs for robust operation in noisy high dv/dt environment
  • Integrated dead-time in gate driver improves reliability and avoids accidental shoot through of the power stage.
  • Built-in compact, high-efficient isolated supply to power the output side of the gate driver
??image.gallery.download_en_US?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCG2.PDF (3176 K)

Reference design overview and verified performance test data

TIDRP15.PDF (353 K)

Detailed schematic diagram for design layout and components

TIDRP16.PDF (116 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRP17.PDF (66 K)

Detailed overview of design layout for component placement

TIDRP19.ZIP (1760 K)

Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDRP18.PDF (310 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Isolated gate drivers

UCC215205.7kVrms, 4A/6A dual-channel isolated gate driver w/ dual input, disable pin, 8V UVLO in DW package

Data sheet: PDF | HTML
Isolated gate drivers

UCC215405.7kVrms 4A/6A dual-channel isolated gate driver with dual inputs, DT pin & 8V UVLO in DW or DWK pkg

Data sheet: PDF | HTML
Transformer drivers

SN6505BLow-noise, 1-A, 420-kHz transformer driver with soft start for isolated power supplies

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide Compact, Half-Bridge, Reinforced Isolated Gate Drive Reference Design Dec. 08, 2016

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​